Sheet scanner



FIG. 1 is a front perspective view of a sheet scanner, in accordance with our new design;

FIG. 2 is a rear perspective view thereof;

FIG. 3 is a front elevational view thereof;

FIG. 4 is a rear elevational view thereof;

FIG. 5 is a right-side elevational view thereof;

FIG. 6 is a left-side elevational view thereof;

FIG. 7 is a top plan view thereof; and,

FIG. 8 is a bottom plan view thereof.

Broken lines and unshaded portions contained within broken lines are not claimed. 

CLAIM The ornamental design for a sheet scanner, as shown and described. 